Pattern Description from Interweave Online Store:Knitted unconventionally from side to side and shaped with short rows (more rows worked at the brim edge, fewer at the top), this super-easy garter-stitch hat is knitted from a single skein of bulky variegated yarn. The long stretches of color in this particular yarn, Ambrosia from Tahki, creates attractive vertical striping. Other than joining the (provisional) cast-on row to the last row of knitting with Kitchener stitch, there is no finishing. Simply tie the narrow end into an overhand knot, roll up the wide end to form a brim, and, surprise, you’re done!